The term 'COMMUNICATES WITH GESTURES' can be summarized by the crossword solution 'SIGNS'. SIGNS are a form of non-verbal communication that involve physical gestures, such as hand signals, facial expressions, and body language. They are used to convey messages without the use of words, and are often used in situations where verbal communication is not possible or practical. SIGNS are also used to supplement verbal communication, providing additional context and meaning to the conversation.